fbpx
Wikipedia

Pacific Centennial Oscillation

January 01, 1970

Pacific Centennial Oscillation is a climate oscillation predicted by some climate models.

In the Pacific Ocean, variability in sea surface temperatures is an important influence on precipitation regimens in the Americas and how this variability changes in response to anthropogenic climate change (El Nino-like or La Nina-like) may determine the outcome of climate change.[1] The sea surface temperature patterns may fluctuate over thousands or millions of years and determining trends and patterns from observational data is difficult.[2]

Several climate models have shown the existence of a centennial scale cycle in Pacific Ocean temperatures, with fluctuations of about 0.5 °C (0.90 °F)[3] and most temperature changes concentrated below the surface of the Western Pacific. The predicted effects have some similarities to El Nino Southern Oscillation[1] and may be responsible for recent La Nina-like trends in Pacific Ocean temperature patterns[4] and trends in the east–west gradient of Pacific sea surface temperatures from 1900 forward;[5] in one climate model the Pacific Centennial Oscillation drives long droughts in the Southwestern United States[6] such as the 2011–2017 California drought.[7]

The Pacific Centennial Oscillation cycle however might be spurious,[8] a model artifact.[9] Later research has shown the possibility that centennial cycles in the Pacific Ocean sea surface temperature structure can be a consequence of an overly long Pacific cold tongue, although genuine centennial cycles in nature cannot be completely ruled out[10] and has been re-proposed to explain centennial droughts in the Southwestern United States[11] and in connection to[12] a dipole mode between the southeastern Indian and Pacific Oceans.[13]

References edit

  1. ^ a b Karnauskas et al. 2012, p. 5943.
  2. ^ Karnauskas et al. 2012, p. 5944.
  3. ^ Karnauskas et al. 2012, p. 5958.
  4. ^ Coats et al. 2015, p. 125.
  5. ^ Samanta et al. 2018, pp. 10609–10610.
  6. ^ Coats et al. 2015, p. 136.
  7. ^ Seager, Richard; Hoerling, Martin; Schubert, Siegfried; Wang, Hailan; Lyon, Bradfield; Kumar, Arun; Nakamura, Jennifer; Henderson, Naomi (September 2015). "Causes of the 2011–14 California Drought". Journal of Climate. 28 (18): 7021. Bibcode:2015JCli...28.6997S. doi:10.1175/jcli-d-14-00860.1. ISSN 0894-8755. S2CID 37382483.
  8. ^ Karnauskas et al. 2012, p. 5959.
  9. ^ Samanta et al. 2018, p. 10610.
  10. ^ Samanta et al. 2018, p. 10616.
  11. ^ O'Mara, Nicholas A.; Cheung, Anson H.; Kelly, Christopher S.; Sandwick, Samantha; Herbert, Timothy D.; Russell, James M.; Abella-Gutiérrez, Jose; Dee, Sylvia G.; Swarzenski, Peter W.; Herguera, Juan Carlos (2019). "Subtropical Pacific Ocean Temperature Fluctuations in the Common Era: Multidecadal Variability and Its Relationship With Southwestern North American Megadroughts". Geophysical Research Letters. 46 (24): 14669. Bibcode:2019GeoRL..4614662O. doi:10.1029/2019GL084828. ISSN 1944-8007. S2CID 214196860.
  12. ^ Zhang et al. 2022, p. 569.
  13. ^ Zhang et al. 2022, p. 562.

Sources edit

  • Coats, Sloan; Smerdon, Jason E.; Cook, Benjamin I.; Seager, Richard (January 2015). "Are Simulated Megadroughts in the North American Southwest Forced?". Journal of Climate. 28 (1): 124–142. Bibcode:2015JCli...28..124C. doi:10.1175/jcli-d-14-00071.1. ISSN 0894-8755.
  • Karnauskas, Kristopher B.; Smerdon, Jason E.; Seager, Richard; González-Rouco, Jesús Fidel (September 2012). "A Pacific Centennial Oscillation Predicted by Coupled GCMs" (PDF). Journal of Climate. 25 (17): 5943–5961. Bibcode:2012JCli...25.5943K. doi:10.1175/jcli-d-11-00421.1. hdl:10261/75952. ISSN 0894-8755.
  • Samanta, Dhrubajyoti; Karnauskas, Kristopher B.; Goodkin, Nathalie F.; Coats, Sloan; Smerdon, Jason E.; Zhang, Lei (7 October 2018). "Coupled Model Biases Breed Spurious Low-Frequency Variability in the Tropical Pacific Ocean". Geophysical Research Letters. 45 (19): 10, 609–10, 618. Bibcode:2018GeoRL..4510609S. doi:10.1029/2018gl079455. hdl:1912/10734. ISSN 0094-8276.
  • Zhang, Lei; Han, Weiqing; Karnauskas, Kristopher B.; Li, Yuanlong; Tozuka, Tomoki (15 January 2022). "Eastward Shift of Interannual Climate Variability in the South Indian Ocean since 1950". Journal of Climate. 35 (2): 561–575. Bibcode:2022JCli...35..561Z. doi:10.1175/JCLI-D-21-0356.1. ISSN 0894-8755. S2CID 240130097.

January 01, 1970
pacific, centennial, oscillation, climate, oscillation, predicted, some, climate, models, pacific, ocean, variability, surface, temperatures, important, influence, precipitation, regimens, americas, this, variability, changes, response, anthropogenic, climate,. Pacific Centennial Oscillation is a climate oscillation predicted by some climate models In the Pacific Ocean variability in sea surface temperatures is an important influence on precipitation regimens in the Americas and how this variability changes in response to anthropogenic climate change El Nino like or La Nina like may determine the outcome of climate change 1 The sea surface temperature patterns may fluctuate over thousands or millions of years and determining trends and patterns from observational data is difficult 2 Several climate models have shown the existence of a centennial scale cycle in Pacific Ocean temperatures with fluctuations of about 0 5 C 0 90 F 3 and most temperature changes concentrated below the surface of the Western Pacific The predicted effects have some similarities to El Nino Southern Oscillation 1 and may be responsible for recent La Nina like trends in Pacific Ocean temperature patterns 4 and trends in the east west gradient of Pacific sea surface temperatures from 1900 forward 5 in one climate model the Pacific Centennial Oscillation drives long droughts in the Southwestern United States 6 such as the 2011 2017 California drought 7 The Pacific Centennial Oscillation cycle however might be spurious 8 a model artifact 9 Later research has shown the possibility that centennial cycles in the Pacific Ocean sea surface temperature structure can be a consequence of an overly long Pacific cold tongue although genuine centennial cycles in nature cannot be completely ruled out 10 and has been re proposed to explain centennial droughts in the Southwestern United States 11 and in connection to 12 a dipole mode between the southeastern Indian and Pacific Oceans 13 References edit a b Karnauskas et al 2012 p 5943 Karnauskas et al 2012 p 5944 Karnauskas et al 2012 p 5958 Coats et al 2015 p 125 Samanta et al 2018 pp 10609 10610 Coats et al 2015 p 136 Seager Richard Hoerling Martin Schubert Siegfried Wang Hailan Lyon Bradfield Kumar Arun Nakamura Jennifer Henderson Naomi September 2015 Causes of the 2011 14 California Drought Journal of Climate 28 18 7021 Bibcode 2015JCli 28 6997S doi 10 1175 jcli d 14 00860 1 ISSN 0894 8755 S2CID 37382483 Karnauskas et al 2012 p 5959 Samanta et al 2018 p 10610 Samanta et al 2018 p 10616 O Mara Nicholas A Cheung Anson H Kelly Christopher S Sandwick Samantha Herbert Timothy D Russell James M Abella Gutierrez Jose Dee Sylvia G Swarzenski Peter W Herguera Juan Carlos 2019 Subtropical Pacific Ocean Temperature Fluctuations in the Common Era Multidecadal Variability and Its Relationship With Southwestern North American Megadroughts Geophysical Research Letters 46 24 14669 Bibcode 2019GeoRL 4614662O doi 10 1029 2019GL084828 ISSN 1944 8007 S2CID 214196860 Zhang et al 2022 p 569 Zhang et al 2022 p 562 Sources edit Coats Sloan Smerdon Jason E Cook Benjamin I Seager Richard January 2015 Are Simulated Megadroughts in the North American Southwest Forced Journal of Climate 28 1 124 142 Bibcode 2015JCli 28 124C doi 10 1175 jcli d 14 00071 1 ISSN 0894 8755 Karnauskas Kristopher B Smerdon Jason E Seager Richard Gonzalez Rouco Jesus Fidel September 2012 A Pacific Centennial Oscillation Predicted by Coupled GCMs PDF Journal of Climate 25 17 5943 5961 Bibcode 2012JCli 25 5943K doi 10 1175 jcli d 11 00421 1 hdl 10261 75952 ISSN 0894 8755 Samanta Dhrubajyoti Karnauskas Kristopher B Goodkin Nathalie F Coats Sloan Smerdon Jason E Zhang Lei 7 October 2018 Coupled Model Biases Breed Spurious Low Frequency Variability in the Tropical Pacific Ocean Geophysical Research Letters 45 19 10 609 10 618 Bibcode 2018GeoRL 4510609S doi 10 1029 2018gl079455 hdl 1912 10734 ISSN 0094 8276 Zhang Lei Han Weiqing Karnauskas Kristopher B Li Yuanlong Tozuka Tomoki 15 January 2022 Eastward Shift of Interannual Climate Variability in the South Indian Ocean since 1950 Journal of Climate 35 2 561 575 Bibcode 2022JCli 35 561Z doi 10 1175 JCLI D 21 0356 1 ISSN 0894 8755 S2CID 240130097 Retrieved from https en wikipedia org w index php title Pacific Centennial Oscillation amp oldid 1193532583, wikipedia, wiki, book, books, library,

article

, read, download, free, free download, mp3, video, mp4, 3gp, jpg, jpeg, gif, png, picture, music, song, movie, book, game, games.